Reply To: Johnson 5hp TD20 ignition timing facts & figures?

Home › Forum › Ask A Member › Johnson 5hp TD20 ignition timing facts & figures? › Reply To: Johnson 5hp TD20 ignition timing facts & figures?

August 22, 2019 at 8:24 pm #181811
frankr
Participant

    The crank is mostly round, except for the “flat” that causes the points to close when the push rod enters the flat. So, the points should be set to be open 0.020″ when the push rod is anywhere on the round portion of the shaft. If you have to rotate the shaft to get the push rod on the round portion, well sure.